Struct SubscriptionOptions 

pub struct SubscriptionOptions {
    pub qos: QoS,
    pub no_local: bool,
    pub retain_as_published: bool,
    pub retain_handling: RetainHandling,
}

Subscription options (v5.0)

Fields

qos: QoS

Maximum QoS level the client will accept

no_local: bool

No Local option - if true, Application Messages MUST NOT be forwarded to this connection

retain_as_published: bool

Retain As Published - if true, keep the RETAIN flag as published

retain_handling: RetainHandling

Retain Handling option

Implementations

impl SubscriptionOptions

pub fn new(qos: QoS) -> Self

Creates subscription options with the specified QoS

pub fn with_qos(self, qos: QoS) -> Self

Sets the QoS level

pub fn encode(&self) -> u8

Encodes subscription options as a byte (v5.0) Original manual implementation for comparison

pub fn encode_with_bebytes(&self) -> u8

Encodes subscription options using bebytes (hybrid approach) Bebytes handles bit field operations, Rust handles type safety

pub fn decode(byte: u8) -> Result<Self>

Decodes subscription options from a byte (v5.0) Original manual implementation for comparison

Errors

Returns an error if the QoS value is invalid

pub fn decode_with_bebytes(byte: u8) -> Result<Self>

Decodes subscription options using bebytes (hybrid approach)
Bebytes handles bit field extraction, Rust handles validation and type conversion

Errors

Returns an error if the QoS value or retain handling is invalid, or reserved bits are set

Trait Implementations

impl Clone for SubscriptionOptions

fn clone(&self) -> SubscriptionOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SubscriptionOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SubscriptionOptions

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SubscriptionOptions

fn eq(&self, other: &SubscriptionOptions) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SubscriptionOptions

impl Eq for SubscriptionOptions

impl StructuralPartialEq for SubscriptionOptions